.nav-tabs {
    border-bottom: 2px solid #dee2e6;
    margin-bottom: 20px;
}

.nav-tabs .nav-link {
    border: none;
    color: #555;
    font-weight: 500;
    padding: 10px 20px;
}

.nav-tabs .nav-link.active {
    color: #0d6efd;
    border-bottom: 3px solid #0d6efd;
    background: transparent;
}

body {
    padding-top: 20px;
    background-color: #f8f9fa;
}